Chassis and drive states

In a cluster, the combination of nodes in different degraded states determines whether read requests, write requests, or both work. A cluster can lose write quorum but keep read quorum. OneFS provides details about the status of chassis and drives in your cluster. The following table describes all the possible states that you may encounter in your cluster.

If you are running IsilonSD Edge, you can view and manage the chassis and drive state details through the IsilonSD Management Plug-in. For more information, see the IsilonSD Edge Installation and Administration Guide.

State	Description	Interface	Error state
HEALTHY	All drives in the node are functioning correctly.	Command-line interface, web administration interface
L3	A solid state drive (SSD) was deployed as level 3 (L3) cache to increase the size of cache memory and improve throughput speeds.	Command-line interface
SMARTFAIL or Smartfail or restripe in progress	The drive is in the process of being removed safely from the file system, either because of an I/O error or by user request. Nodes or drives in a smartfail or read-only state affect only write quorum.	Command-line interface, web administration interface
NOT AVAILABLE	A drive is unavailable for a variety of reasons. You can click the bay to view detailed information about this condition. In the web administration interface, this state includes the ERASE and SED_ERROR command-line interface states.	Command-line interface, web administration interface	X
SUSPENDED	This state indicates that drive activity is temporarily suspended and the drive is not in use. The state is manually initiated and does not occur during normal cluster activity.	Command-line interface, web administration interface
NOT IN USE	A node in an offline state affects both read and write quorum.	Command-line interface, web administration interface
REPLACE	The drive was smartfailed successfully and is ready to be replaced.	Command-line interface only
STALLED	The drive is stalled and undergoing stall evaluation. Stall evaluation is the process of checking drives that are slow or having other issues. Depending on the outcome of the evaluation, the drive may return to service or be smartfailed. This is a transient state.	Command-line interface only
NEW	The drive is new and blank. This is the state that a drive is in when you run the isi dev command with the -a add option.	Command-line interface only
USED	The drive was added and contained an Isilon GUID but the drive is not from this node. This drive likely will be formatted into the cluster.	Command-line interface only
PREPARING	The drive is undergoing a format operation. The drive state changes to HEALTHY when the format is successful.	Command-line interface only
EMPTY	No drive is in this bay.	Command-line interface only
WRONG_TYPE	The drive type is wrong for this node. For example, a non-SED drive in a SED node, SAS instead of the expected SATA drive type.	Command-line interface only
BOOT_DRIVE	Unique to the A100 drive, which has boot drives in its bays.	Command-line interface only
SED_ERROR	The drive cannot be acknowledged by the OneFS system. In the web administration interface, this state is included in Not available.	Command-line interface, web administration interface	X
ERASE	The drive is ready for removal but needs your attention because the data has not been erased. You can erase the drive manually to guarantee that data is removed. In the web administration interface, this state is included in Not available.	Command-line interface only
INSECURE	Data on the self-encrypted drive is accessible by unauthorized personnel. Self-encrypting drives should never be used for non-encrypted data purposes. In the web administration interface, this state is labeled Unencrypted SED.	Command-line interface only	X
UNENCRYPTED	Data on the self-encrypted drive is accessible by unauthorized personnel. Self-encrypting drives should never be used for non-encrypted data purposes. In the command-line interface, this state is labeled INSECURE.	Web administration interface only	X